Niver in White and Gallitin, Il.

Searching for family of David Niver. Came to Il ca. 1830 from NY. Parents and wife unknown. Had at least seven daughters and one son. The first wife died by 1835. He married Catherine Hanks. He died by 1840, when she remarried to John Slocumb. Who were his parents in NY, and when and where did he die? Thank you, L. Minter